Technical solutions for the construction of your own slow sand filters are presented.
WATER FOR THE WORLD (n.y): Constructing a Slow Sand Filter. Vienna: Water for the World. Technical Note, No. RWS. 3.C.3 URL [Accessed: 21.05.2019]Technical solutions for the construction of your own slow sand filters are presented.
WATER FOR THE WORLD (n.y): Constructing a Slow Sand Filter. Vienna: Water for the World. Technical Note, No. RWS. 3.C.3 URL [Accessed: 21.05.2019]